Yang Tingting, Liu Heyan, Wu Fan, Chen Hongshan, Wang Qing, Wei Zhiyi, Zhang Jinwei
Opt Lett. 2023 Sep 1;48(17):4633-4636. doi: 10.1364/OL.495730.
Kerr-lens mode-locking (KLM) has been widely used in thin-disk oscillators to generate high-power femtosecond pulses. Here we demonstrate a Kerr-lens mode-locked Yb:YAG thin-disk oscillator that can be self-started under two configurations. The first can deliver 13-W, 235-fs pulses at a repetition rate of 103 MHz; the second delivers 49 W at a repetition rate of 46.5 MHz, whose corresponding pulse energy of 1.05 µJ is, to the best of our knowledge, the highest energy ever obtained in self-started Kerr-lens mode-locked oscillators. A new method to initiate KLM in the form of optical perturbation in a thin-disk oscillator has also been demonstrated.
克尔透镜锁模（KLM）已被广泛应用于薄盘振荡器中以产生高功率飞秒脉冲。在此，我们展示了一种克尔透镜锁模的Yb:YAG薄盘振荡器，它可以在两种配置下自启动。第一种配置能够以103 MHz的重复频率输出13 W、235 fs的脉冲；第二种配置以46.5 MHz的重复频率输出49 W的功率，据我们所知，其对应的1.05 µJ脉冲能量是自启动克尔透镜锁模振荡器中获得的最高能量。还展示了一种在薄盘振荡器中以光学微扰形式启动KLM的新方法。
